HBO goes inside one of the most memorable sequences from last Sunday’s episode of “Game of Thrones.”

“Game of Thrones” is a series filled with sweeping storylines and epic moments. And one of the more memorable scenes of season three occurred in the opening moments of last Sunday’s episode, “Kissed By Fire.”

Sandor “The Hound” Clegane (Rory McCann) was forced into trial by combat courtesy of the Brotherhood Without Banners. And the Hound’s opponent was the Brotherhood’s leader himself, Lord Beric Dondarrion (Richard Dormer), who went into the battle with his flaming sword.

Ahead of Sunday’s new episode of “Game of Thrones,” HBO has released a behind-the-scenes video about the Hound and Beric’s fight and some of the preparation that went into capturing that sequence on film. Screenwriter Bryan Cogman and director Alex Graves weigh in on the scene along with Sword Master, CC Smiff; Set Decorator, Rob Cameron; Stunt Coordinator, Paul Herbert and Weapons Master, Tommy Dunne.